Independent solution

How to solve this Annuities question

Setup

Setup

Use time 5, the date of the first payment, as the local valuation date.

(1000,1500,2000,2500,3000)=500(1,1,1,1,1)+500(1,2,3,4,5)(1000,1500,2000,2500,3000)=500(1,1,1,1,1)+500(1,2,3,4,5)

Model

Model

Both local streams begin immediately at time 5, so they are annuities-due.

V5=500a¨5i+500(Ia¨)5iV_5=500\ddot a_{\overline5|i}+500(I\ddot a)_{\overline5|i}

Compute

Compute

Bring the local value back five years to time 0.

V0=v5[500a¨5i+500(Ia¨)5i]V_0=v^5\left[500\ddot a_{\overline5|i}+500(I\ddot a)_{\overline5|i}\right]

Answer

Answer

This formula is exactly the expression in choice D.

choice D\boxed{\text{choice D}}